How to use the Pace Calculator
The pace calculator converts distance and time into pace and speed and projects race times.
What you need to enter
- Distance (km)
- Time: hours
- minutes
- seconds
The formula
Pace per km = total time ÷ distance. Speed = distance ÷ time.
Worked example
Using the default values in the calculator:
- Distance (km): 10
- Time: hours: 0
- minutes: 50
- seconds: 0
| Pace per km | 5:00 min |
| Pace per mile | 8:03 min |
| Speed | 12 km/h |
| Marathon at this pace | 3 h 31 min |
| Half marathon | 1 h 45 min |
Tips for better results
- Use it to plan a race pace.
- Include walking breaks when estimating.
Common mistakes to avoid
- Mixing miles and kilometres.
- Starting too fast.
Please note: Health calculators and guides give general estimates, not medical advice. Talk to a doctor or other qualified professional about your own health. See our Disclaimer.